Abstract: The device for positioning and retaining optical fibers in a layer including firstly a channel-section base having two L-shaped slots disposed facing each other in the respective flanges of the base, and adapted to positioning the fibers in a layer in the respective horizontal segments of the slots, secondly a grooved guide surface for guiding the fibers, the surface interconnecting the horizontal segments of said slots, and thirdly retaining means for retaining the fibers on the grooved surface. Application: handling and connecting together optical fibers.

Abstract: The clamp includes a body having a grooved plane surface, facing which a clamping jaw is pivotally mounted. The body is constituted by an elongate flat support having a top plane face provided with a recess, and by a plate which is complementary to the recess, which is grooved so that it can receive one or more fibers, and which is removably mounted in the recess in the support. Application: tool for handling optical fibers.

Abstract: A method of cutting an optical fiber ribbon obliquely, the ribbon being constituted by a plurality of optical fibers that are all parallel to a "longitudinal" axis of the ribbon, the fibers all being situated in the same horizontal plane referred to as the plane of the ribbon, and being protected by a common sheath, the method comprising the following steps:a portion of the ribbon is stripped of its sheath;the ribbon is held stationary at two points situated on either side of the stripped portion;a curved anvil is advanced along a displacement axis orthogonal to the horizontal plane so as to tension the portion in such a manner as to incline a part of the stripped portion relative to the horizontal plane; anda cutter is advanced facing the anvil and along a displacement axis parallel or coinciding with that of the anvil to cut the stripped portion in the inclined part.

Abstract: The method of manufacturing a multiferrule for optical fibers, the method consisting in fiber drawing a preform of silica that includes a plurality of mutually parallel channels, the method being characterized by the fact that said preform is made from a rod (1) of silica having a plurality of longitudinal grooves (3) uniformly distributed about an axis (2) and closed by at least one piece of silica (4) for defining said plurality of channels.

Abstract: The assembly of hinged flat modules includes a channel-section support on which the superposed modules are hinged by means of individual hinge coupling means. For each module, said hinge coupling means are constituted by a hinge element attached to and retained against a first edge of the module in question, and having a pair of hinge arms received on said channel-section support, and in that the assembly further includes locking elements, each of which is attached to and retained against the opposite edge of the respective module. Application: an assembly of optical cassettes.

Abstract: The assembly of stacked and hinged modules includes holding and hinging means for holding and hinging the individual modules. Said means are constituted by an assembling and hinging strip mounted and retained directly on a first edge of each module, and having individual hinges for hinging the modules. Application: an assembly of cassettes for optical fibers.

Abstract: A cassette for optical fibers includes a bottom surrounded by discontinuous rim segments between which access channels for the fibers are delimited. Each of the access channels is delimited over a substantially identical width on the bottom by two facing sidewalls. A block projects from the bottom of the cassette and has two side faces facing end portions of corresponding adjacent rim segments at respective corners, thereby forming similar double access channels at the corners. An element of the first type or second type sized to the double access channels is selectively positioned within the double access channels. The element of the first type is constituted by a flexible slab having spaced parallel slots receiving and retaining bare fibers. A channel element of the second type is constituted by a rigid, U-shaped channel section part having two flanges interconnected by a web, with each flange including a series of teeth. The teeth delimit slots receiving and retaining protected fibers.

Abstract: The cassette has a bottom on which holding means are provided for holding optical fiber connections thereon, and optionally on which a cylinder is provided for coiling the fibers. The bottom includes different sets of openings. Either two connection supports chosen from different supports, or else one of said different connection supports and said cylinder are removably mounted side-by-side in two of said sets of openings, the supports and the cylinder having respective sets of snap-fastening catches corresponding to respective sets of openings. The cassette is thus made adaptable to being used in different ways.

Abstract: The invention relates to a connection strip for transmission lines, having two rows of tags on a tag block for the pairs of conductors that define the lines, and having lightning arresters connected in parallel with the lines. The tag block has three rows of chimneys on its front face for the two rows of tags for the conductors, and a third row of tags for the lightning arresters, with the lightning arresters being mounted in a protection strip which is itself removably mounted on the third row of chimneys. The invention is applicable to telecommunications.

Abstract: A high-reliability terminal block and associated jumper link stowage device system has no wire guides in the grooves between rows of insulation-displacement connection chimneys of a terminal block body. A device has a plate with a row of teeth at the same pitch as the chimneys extending perpendicular to the plane of the plate. The teeth are wider than the grooves of the terminal block.

Abstract: The connection strip is an insulating block in which connection elements are mounted to define insulation displacement connectors in rows of chimneys on a front face of the block, and rows of other connectors on the rear face of the block. The chimneys are separated from one another by transverse slots extending across their rows and they are capable of receiving single or twin pushers in such a manner as to be held captive between a pulled-out position and a pushed-in position in the chimneys. The connection strip includes end wire-passing pieces on the front face of the block, and is applicable to telecommunications.

Abstract: A retaining system, in particular for retaining bundles of wires in a telephone exchange, comprises successive stages (E1, E2) each constituted by a hook (B2, S2, 18, 20) which, together with the hook (22) of an adjacent stage (E1) constitutes a loop suitable, for example, for retaining a bundle of electric wires. The first stage (E1) is provided with fixing means (W) for fixing it to a supporting structure. Each subsequent stage (E2) is connected to the preceding stage (E1) by a link rod (T1) which is snap-fastened in housings (L1, L2) in each stage. The invention is applicable to telephone exchanges.

Abstract: A connector for self-stripping insulated electric conductors, said conductor including a fork or clip type conductive connection part with at least two resilient arms between which is provided a slot for inserting the electric conductor to be connected, the connection part being designed for inserting in a cavity in a stand made of insulating material. The double fork type connection part (75) has two inclined slots (64, 65) whose axes converge towards the top of the connector. Application to electric connections, in particular in telecommunications.

Abstract: The connector connects two electric conductors together in a sealed manner, providing dielectric continuity of the conductor insulation as well as conductive continuity of the conductors. Said connector comprises a connector sleeve (2) having a conductive portion (21) made of a malleable material and a cavity (23) for accommodating a bared end portion (5) of a conductor as well as an adjacent insulated portion of said conductor. The sleeve (2) is covered by an insulating covering (6) which completely surrounds the conductive portion (21) and is folded over at the ends to line those parts of the cavity (23) which receive insulated portions of the conductors to be joined.